/Engine/Source/Developer/SourceControl/Public/SourceControlHelpers.h
Blocks until action is complete. Older C++ only version ofCopyFile().
Success or failure of the operation
static bool CopyFileUnderSourceControl ( const [FString](API\Runtime\Core\Containers\FString) & InDestFile, const [FString](API\Runtime\Core\Containers\FString) & InSourceFile, const [FText](API\Runtime\Core\Internationalization\FText) & InFileDescription, [FText](API\Runtime\Core\Internationalization\FText) & OutFailReason )